 Anytime you make a measurement it's going to have some kind of units and those units are really important So in this case I was six times the height of a Scottish terrier and that unit is called a rough So six roughs, which is approximately equal to eight meows, which is the height of a Cheshire cat Now I must admit that roughs and meows are fairly unusual units of length In fact, I kind of just made them up, but at least they're units of length I couldn't possibly have been six minutes tall. I couldn't possibly have been eight kilograms tall